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Under Armour Boys 3-Pack  Performance Boxer Brief

Instructions

<h3>Performance-Driven Design for Active Boys</h3> <p>Under Armour transforms everyday essentials with its boys’ sport boxerjock 3-pack, combining bold novelty prints and versatile solids for a fun, energetic, and athletic look. Featuring splatter-inspired graphics, playful patterns, and vibrant color pops, these boxerjocks are designed to excite and inspire active lifestyles.</p> <h3>Lightweight Fabric for Comfort and Movement</h3> <p>Crafted from a lightweight polyester and elastane jersey knit, the fabric is soft, breathable, and stretches naturally with the body. It wicks away moisture and dries quickly, ensuring cool and comfortable wear during school days, sports practice, and weekend adventures. Unlike basic cotton underwear, this performance blend maintains its shape and support, wash after wash.</p> <h3>Thoughtful Construction for Everyday Durability</h3> <p>Designed with comfort and durability in mind, these boxerjocks feature a soft elastic waistband with Under Armour branding that stays securely in place. Smooth flatlock seams reduce irritation, while reinforced stitching adds strength in high-motion areas. The streamlined silhouette offers comfortable coverage and stays put under shorts, joggers, or uniforms.</p> <h3>Elevating Basics with Trusted Quality</h3> <p>Rooted in Under Armour’s legacy of innovation, this 3-pack delivers technical fabric, durable construction, and standout design. It’s a dependable foundation layer that supports active lifestyles, enhances comfort, and provides the trusted quality families expect from a leading athletic brand.</p>

Clothing Size

Color

Brand

<ul>  <li>Boys 3-pack performance boxer briefs with 4-inch inseam featuring a mix of bold prints and versatile solid colors</li>  <li>Smooth and breathable stretch jersey fabric feels lightweight while helping wick away moisture for all day comfort</li>  <li>Supportive athletic fit with flexible waistband and stay-put legs for secure coverage that moves with him</li>  <li>Logo waistband helps keep underwear secure during activity</li>  <li>4-way stretch construction&nbsp;</li>  <li>Machine washable fabric is designed to hold its shape color and performance wear after wear</li> </ul>

Specifications

<ul>
<li>Boys 3-pack performance boxer briefs with 4-inch inseam featuring a mix of bold prints and versatile solid colors</li>
<li>Smooth and breathable stretch jersey fabric feels lightweight while helping wick away moisture for all day comfort</li>
<li>Supportive athletic fit with flexible waistband and stay-put legs for secure coverage that moves with him</li>
<li>Logo waistband helps keep underwear secure during activity</li>
<li>4-way stretch construction&nbsp;</li>
<li>Machine washable fabric is designed to hold its shape color and performance wear after wear</li>
</ul>

Actual Color

Black Pack

Blue/Black Pack

Blue/Orange Pack

The Under Armour boys sport boxer jock Underwear is perfect For boys who prefer the slick sporty feel rather than the cotton.  The material is 90% polyester and 10% elastane.  

Doesn’t stay wet very long.  When I wash it, it dries very quickly in the dryer.  It’s perfect for A quick wash load.  

The waistband is comfortable.  It does have a seam, but it is smoothly sewn. 

It has a fun pattern on wanting the pairs and solid colors for the other two.

Comfortable and stylish

Under Armour Boys’ Boxer Briefs are a solid choice if you’re looking for comfort, durability, and performance for active kids. The first thing that stands out is the fabric, it’s lightweight, soft, and does a great job of wicking away moisture. This makes them especially good for sports.
The fit is snug without being too tight, offering good support while still allowing for easy movement. My son said “these new underwear feel great, mom”.

In terms of durability, these hold up nicely. The stitching stayed intact after washing, and the material didn't lose its shape or softness. The also run true to size of similar brands.

Great for active boys

My son loved these boxer briefs cuz they are incredibly comfortable and the fabric is soft, breathable, and moisture-wickingy, which keeps him dry during his track practice and all-day wear too. He also mentioned that they are a bit snug but not too tight which is something he greatly loves since they make him agile. I would highly recommend these Under Armour Sport Boys Boxer Jock Briefs for any parent looking for reliable and comfortable underwear for their boys!

Comfortable and Breathable

These boxers are a favorite of my sons! He really enjoys their fit, especially the waistband. The wicking is a great feature that this brand specifically is known for and these don't disappoint. He also really enjoys the variety of the colors within the packages.

Wicking boxers

Comfy and stretchy boys boxer briefs. These are approved by my 10 year old as cool and comfortable. They are true to size. There are two solid colored briefs and a printed brief. Machine washable. My only complaint is I wish they were cotton instead of polyester.

Comfy, kid approved boxer briefs

These were a great true to size fit. The material is very comfortable and my grandson loved the patterns, it comes with 3 in the box and each one is different . I can tell they will last a long time. Will definitely buy again.

Great

Adorable boxers for.my son. He loves them. They are stretchy and breathable. They wash well so that is always a plus. I love the characters and the feel of them too. Fit just right for my son. I like how many you grt in a package.

Comfy

I love this three pack of youth boys briefs. My grandson just loves them because he said that they are just liked his dads.  They wash well and retained their shape.  I like the elastic legs that don't cut into his skin.

Boy briefs

These definitely fit bigger than expected. My son says they are super comfortable and dont ride up when he is playing basketball or running track and field. Definitely a must have for active boys in sports.

Comfortable for sports kids

I got these boxer briefs for my 9 year old grandson who lives with us. He said that they felt good on and weren't to small as most under armour products seem to me to run small. He found them to be very comfortable when doing his karate and jui jitsu workouts and said the did not ride up or give him a wedgie.

Good fit nice style

under armour boys 3-pack performance boxer brief showing three front-facing boxerjocks — solid black, solid blue, and dark gray novelty print with neon green and pink accents; centered view highlights 4-inch inseam silhouette, Under Armour logo elastic waistbands, smooth flatlock seams, and stretch jersey fabric that wicks moisture and moves with him, suitable for sports and everyday active wear.

Shop Under Armour Boys 3-Pack Performance Boxer Brief at Sam's Club. Explore boys' performance underwear for everyday wear.

Under Armour Boys 3-Pack Performance Boxer Brief

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